home backup power

Modern house with four home battery backup systems labeled 5 kWh, 10 kWh, 20 kWh, and 30 kWh, illustrating battery capacity for household appliances.

How Many kWh of Battery Backup Does a House Need?

October 17, 2026 16 min read

Compare 5–30 kWh home batteries, calculate backup power for 8–72 hours, and see how much storage your house needs based on appliances and square footage.

Solar panels, a home battery, and a portable generator beside a house, labeled to show sunlight capture, energy storage, and backup power.

Outage Planning

Solar + Battery + Generator: How to Build a Home Backup System That Can Last for Days

September 13, 2026 26 min read

A resilient backup system can use batteries for instant power, solar for daily recharging, and a generator for the gaps when stored energy and sunlight are not enough.